button {
    padding: 10px 20px;
    font-size: 20px;
    background-color: red;
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: green;
}

.output {
    margin-top: 20px;
    font-family: monospace;
    font-size: 20px;
    white-space: pre-wrap;
}